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Chainset Options
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Bottom Bracket Options
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Cassette Ratio Options
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Brake Calipers Options
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Chains Options
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Di2 STI Options
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Di2 Rear Derailleur Options
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Di2 Front Derailleur Options
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Di2 Battery, Charger & Cables Options
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Battery Mount Options
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Junction Box Options
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Code: ULTEGRA-DI2-GROUP
Shimano Ultegra Di2 Groupset, complete groupset with the electronic shifting.

Groupset Specification:

  • Chainset - Ultegra 6700 Double - Choice of 39/53 or 34/50 with crank lengths of 170, 172.5 or 175mm
  • Bottom Bracket - Hollowtech 2 - Choice of English or Italian thread
  • Brakes - Ultegra - Front & rear calipers
  • Cassette - Ultegra 10 speed, choice of ratio
  • Chain- Ultegra 10 speed
  • STI Brake/Gear Levers - Ultegra Di2 model
  • Front derailleur - Ultegra Di2 model - Braze-on
  • Rear derailleur - Ultegra Di2 model
  • Battery - Short Mount - Fixes to frames with the Di2 specific mounts, normally under the chainstay or below the bottle cage and is norammly used with internal cable routing. Long Mount fixes to standard bottle cage fixings and can be used both or internal and external cable routing frames.
  • Junction boxes - 2 models available, internal for where all the cables and run internally in the frame and external which is mounted under the bottom bracket and allows external cable routing.
  • Cables - All battery to derailleur cables included. The cables are the same for internal and external routing but if mounting externally you will need to fix to your frame with cable ties or covers (no external fittings supplied)
  • Cable lengths supplied: 1 x 300mm (Front mech) 1 x 600mm (Battery) 1 x 1000mm ( STI to rear Junction) 1 x 700mm (Rear mech)
Mr LAU Di2 Ultegra groupset has the best price to performance ratio IMO, its response is fast, positioning of chain vs gear is accurate, durable and reliable.
Miss Field This is an amazing set of kit. I had 105 on my bike, after upgrading to Ultegra and Di2, I was really impressed. The gear changes are effortless and everything feels much lighter and solid when riding the bike. Highly recommended.
Mr valentine Superb performance on the road, fast, quite, effortless. Very easy to install. Have no worries regarding battery life etc... As was amazed on how long battery charges last (2k+)
Mr Balle It is the best upgrade I have made on my bike ever. The quick smooth shifts and auto trimming is beautiful.
Mr Fernberger It just rocks, plain and simple.
Mr Angel I ride bikes for long time. When I installed the DI 2 groupset, The only issue I had was " why I did not buy it years ago". Changing gears is now so easy, quiet and accurate. Shipping, by the way, was very fast, well packed and every thing was exactly as described. Thanks
Mr Collin Very pleased to have finally gone for the Di2. The way in which the front derailleur automatically trims itself is all the value I need. In terms of receiving the groupset it was all bags and boxes without the tech manual! Pretty straight forward to install but one or two bits need that confirmation you are going in the right direction!
Mr Crane Absolute class groupset. Solid chainset, supreme power transfer. Powerful brakes and the electronic shifting is faster than manual and so far problem free. The auto trimming of the front mech is perfect for friction-free running. Still up for debate if the extra cost is worth it over manual but I think it is. Would be nice if more wiring options were offered. I was unsure about the external wiring setup but the sheaths cover things up perfectly on a black frame its almost unoticable. Great price and rapid delivery by Merlin. Really happy with my choice of product and retailer.
Marc Great gruppo, di2's are awesome and well worth the extra weight. I've tried the DA Di2 9000's and, for me no discernible difference in shifting compared with Ultegra. Great price from Merlin and a very fast turnaround.
Mr Young Great product at a fantastic price
Mr glynn Great service & price once again thanks Merlin,
Mr Blondel Great products and great service. Fast despatch and delivery. All items were well packed.
lRaphl Received in perfect condition. Merlin was quick to ship it. Best price on the web I could find. All the others advertising around the same price have missing parts like BB or cables. This kit is a full kit with no missing parts. Only down side is the power cord for the charger is made for Europe and not North America. I'll have to cut the plug and replace it but that's a minor thing.
Mr Humphrey So far this group has been a revelation. The shifting is far quicker than regular Ultegra or anything I've ever used. There's no comparison. It's super fast and super crisp. The function itself is far better as well. Only downside is the wires are fixed length so if you don't have internal wiring, you may have to take up the slack in a somewhat messy fashion. I'm sure over time the location of the shift buttons will move but so far so good. It takes some getting used to and with thick winter gloves, the "bigger" button may be hard to engage easily. Till then, it's well worth the extra money and Merlin has a terrific deal on the group.
Brian Chan This set is completely different from the standard Ultegra set. not only it shifts more accurate, faster and powerful. The most exciting thing I have experienced with the Di2 set is when you are riding uphill or sprinting. Normally, when you are sprinting or riding uphill, it is hard to shift from the lower ring to the higher ring as your hand will need to push in to a certain step, but with Di2, you only need to push the button and it will do the shifting. A button which feels just like the home button of your iPhone. It makes shifting when sprinting a lot easier which means you will be faster than the others! The last thing is that the battery last for a long time so, you don;t need to worry about it will run out easily or need to recharge the battery very often.
Mr wilke Great piece of equipment. I say once you've tried the rest buy the best Shimano Di2.
Mr Groll One of the best purchases I have ever made. Flawless shifting and simple to install for do it yourself mechanics. No need for Dura Ace with such a superb Ultegra Di2 group available. I could not be any happier.
Mr Jackson Service, as always was fantastic. Ordered on the afternoon and delivered next morning.
Mr Cox Outstanding Customer Service!!! Phil was great, quick to answer all my questions, professional and courteous! Groupset was as described. All parts were included and expertly packaged. Shipping to U.S. was about 5 days. Faster that some U.S. based e-tailers. Merlin in now my first stop in online shopping. Fantastic!
Andrew Excellent product and well packaged. 5 day turnaround to Australia with very reasonable dhl customs fee. OEM packaging except cassette but genuine Ultegra gear with shimano instructions. Installer thought internal cables were incomplete but found in another Merlin pack so only things extra were Trek BB and BB battery plug. Best price including shipping local/international even counting Customs and install by pro bike shop. Can't tell performance difference between DADi2 and Ui2 - loving the shifts, who cares about 2013 di2?
Brandon Ellis After umming and ahhing finally took the plunge to go electic....and what a revelation! Superb crisp shifting every time, and especially impressed with the front mech performance...in a word revolutionary. On the cosmetic side too the shifters look far more sleek than the mechanical STI ones too!
Jimflip The better shifting, and only slightly heavier electronic group set from Shimano. If you're considering SRAM Red or electronic, this is the group set to go for - you'll never go back! Great deal from Merlin on the FULL group set - excellent value, considering other stores would charge you the same (or more) for the shifting components only. Free shipping to the US is awesome, and DHL couriers gets the goodies to you in under a week. Note if you are buying from the US, you will most likely pay some customs duty, levied by DHL - but even so, it's still a great deal.
Mr wring Excellent service delivered on time product as described and fitted and works great
CT OU Good price, Good QUALITY